fermata vs musical notation

fermata and musical notation both are nouns.

Word	Noun	Adjective	Verb	Adverb
fermata	Yes	No	No	No
musical notation	Yes	No	No	No

As nouns, musical notation is a hypernym of fermata; that is, musical notation is a word with a broader meaning than fermata:

fermata: a musical notation (over a note or chord or rest) that indicates it is to be prolonged by an unspecified amount
musical notation: (music) notation used by musicians

fermata (noun)	musical notation (noun)
(music) a prolongation of unspecified length on a note or chord or rest	(music) notation used by musicians
a musical notation (over a note or chord or rest) that indicates it is to be prolonged by an unspecified amount